Display device



March 7, 1939. F. KRONER 2,149,780

DISPLAY DEVICE March 7, 1939. I F, KRONER I 2,149,780

DISPLAY DEVICE Filed Aug. 28, 1937 2 sheets-snee*v 2 Patented Mar. 7, 1939 UNITED STATES 2,149,786 msmy nrrvrci:`

Friedrich Kroner, Berlin-charlottenburg, Germany, assignor to Transart Aktiebolag, Goteborg, Sweden, a Swedish company Application August 2s, 1937, serial 10.161.439 In Germany August 29. 1936` 6 Claims. (Cl. 411-102) My invention relates to a display device to be used for various purposes, including educational, advertising and like purposes.

It is an object of this invention to produce by means of a. thin, preferably transparent web or strip carrying a plurality of interrelated representations, such as images and/or text, a variety of composite representations on an opaque back` bearing strip or web, with or without the use of a' solid opaque base member, in such a manner that the several interrelated representations become superposed thus forming diierent composite representations depending on the way in which the strip or web is folded or wound up.

The invention will be better understoodl from accompanying drawings, showing by Way of example and schematically some embodiments of the invention, and in which,-

Figure 1 is a plan view `of an image bearing strip or web having at each end a base member;

Figure 2 is a side view of Figure 1;

Figure 3 is a side view of the strip or web shown in Figures 1 and 2, wound up on the left hand base member; f

Figure 4 is a side view of the strip or web shown in Figures 1 and 2, wound up half on the left hand and half on the right hand base member;

Figure 5 is a side view of another embodiment, comprising a thin transparent or opaque silhouette strip or web and two base or core members of triangular prismatic shape; V

Figure 6 isan embodiment showing prismatic base or core members of square cross-section;`

Figure '7 is an embodiment showing base or core members of cylindrical shape;

Figure 8 is a plan View of a strip or web comprising a square shaped middle section and lateral sections;

Figure 9 is a plan view of a strip or web comlar lateral sections; Figure 10 is a side View of a str1p or web adapted to be folded\together Leporello or zig-zag fashion. First, from Figs. 1 to 4 it will be seen that the the following description with reference to the i prising a triangular middle section and triangustrip or web comprises a. plurality of image sections I, 2, 3, 4, 5, 6. Each image section carries graphic representations, such as images and/or text, and the several image or text bearing sections I to 6 are so interrelated as to 4form diierent' composite representations when superposed. 'I'he superposition may be effected by the strip or web being folded together along the folds indicated at 1, 8; 9, I0, II in various ways, but preferably the sections 2, 3, etc. are wound on either of the two end sections.. or base members I or 6. Therefore, these end sections or base members I and 6 are preferably applied to, or formed by, a solid section, such as cardboard.

It will be seen that if the image Abearing sections 2 to 5 are wound on the base or core member I so that the sections 2 and 4 come to lie `underneath said base member I and the sections 3 and 5 come to lie on top of the same, a composite text or picture series I is formed reading in this instance: Wind on base I sheet 3 and sheet 5 and get text or picture series I. On the other hand, if the sections 5, 4, 3, 2 are wound on the other base member 6 in such a manner that the sections 5 and 3 come to lie underneath, and the sections 4v and 2 on top of, base member 6, another composite text series l1 will result reading in this instance: Wind on base 6 sheet 4 and sheet 2 and get text or picture series II.

According to Figure 5 the image bearing strip or-web I2 can be wound on either of two prisms of triangular cross-section I3, I4 to which the vtwo ends of the strip or web I2 are attached.

Figure 6 shows two square' shaped base members I5, I6, the arrangement being'for the rest the same as described with reference to Figure 5.

By holding side by side thetwo base members such as I and 6 in Figure 1 or I3 and I4 in Figure 5 or I5 and I6 in Figure 6, representations 1roneay be .formed extending over both base memers. Y

Y According to Figure 7 the strip I 2 can be wound` "on either of two cylindrical base or core members I1, I8. It will of course be understood that in this instance the length of the image bearing sections corresponding to the image bearing sec. tions in Figures 1 and 2 has to be so chosen that two, three or more pictures cover 360 of the circumference of the Vcylinder being superposed thereon. r

According to Figure 8 a middle section I9 of an image bearing strip or web is provided with lateral sections 20, 2|, 22,23, 24. The lateral sections are preferably separated by folds .25 vfrom the middle section. It will be understood that by The arrangement shown in Figure 9 correspondsto that shown in Figure 8 except that the middle section 26-inFig. 9 and the lateral sections 21,'28, 29 are of triangular shape and the lateralsection 28 is provided with additional'sec- '4 tions 30 and 3I. It will be seen that ithere are various possibilities of superposing the several sections.

Practically. I contemplate applying the middle section I9 (Fig. 8) or 26 (Fig. 9) to a base of solid opaque material, or to makev this section itself entirely of such a material in order.to

facilitate the folding operation," to render the device more stable and to `provide an opaque background. v 1

According to Figure 10, the image bearing strip or web I2 is folded togethergLeporello or zig-zag fashion in such a manner that thev free end of. the strip or web is held with the hand on the right (solid lines) or Aon the left (dotted lines) of the sections of the strip or web which are already superposed. Solid base members 32 and 33 may or may not be provided.

The image bearing strip or web may be transparent consisting of thematerial known by the trade-mark Cellophane' which consists of cellulose hydrate, or the like. The graphic representations are in this case preferably applied to the material by being printed thereon, preferably with the use of 'opaque colours. transparent colours may be used, especially for the upper layers, forinstance `in order to obtain composite colours such as green by the superposition of a yellow and a blue picture. It is also possible by the selection of suitable colours to cause the lower picture to disappear by the superposition of the upper picture.

Furthermore', I contemplate within the scope of my invention to use opaque strips or webs cut out by stamping or otherwise at the sections which are intended to be transparent, so as to` 'composed of different materials to obtain particular effects.

It will be understood that the device according to this invention is particularly adapted to However, also,

produce a series of pictures showing an organic development, such as a fairy-tale, a biological process, or any other process of conversion or the like..

I claim:

1. The combination with a prismatic base member, of a thin at least partly transparent strip or web comprising a plurality of successive image bearing sections containing" interrelated graphic representations, said strip or web being adapted to be wound on said base' member so as to form different composite graphic representa- 4tions by the various image bearing sections of the strip or web beingwound up and superposed on said base member.

2. The combination with a base member, of a 'strip or web of at least partly transparent material comprising a plurality of successive image bearing sections having each the size .of said base member and containing interrelated graphic representations, said strip or 4web being adapted to be Wound on said base member so as to form different` composite graphic representations by the various image bearing sections of the strip or web being woundup and superposed on said base member. f

3. The combination with a base member showing at least one graphic representation of a strip or web` of. at least partly transparent material comprising image bearing sections containing additional subject matter whereby the graphic representation of said base member is modiiied.A

.additional wound up transparent layers.

4. A strip of at least partly transparent mate- Arial comprising graphic representations and transverse folds adapted to permit the image bearingsections betweenthe folds to be superposed in such a. manner that the graphic representations appearing thereon form different composite representations.

5. The combination `with a strip or web of at least partly transparent material being divided by folds into a plurality of substantially equal rectangular sections comprisingv interrelated graphic representations, of two solid sheets of substantially equal size one at each end of said strip or web and adapted to permit said strip or web to be wound or unwound onto or from either of said solid sheets, whereby theseveral sections of said strip or web are superposed so as to form different composite graphic representations.

6. The combination with a strip or web of y at least partly opaque material being divided by foldsv into a plurality of. substantially equal rectangular sections comprising interrelated silhouette representations, of two solid sheets of substantially equal size one at each end of said strip or web and adapted to permit said strip or web to be wound or unwound from said solid sheets, whereby the several sections of said stripV or web are superposed so as to form different composite silhouette representations.

FRIEDRICH KRONER. 

